tpm: st33zp24: Add tpm st33zp24 support with i2c

Add support for TPM ST33ZP24 family with i2c.

For i2c we are relying only on DM_I2C.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
diff --git a/drivers/tpm/Kconfig b/drivers/tpm/Kconfig
index 5a75f85..9432160 100644
--- a/drivers/tpm/Kconfig
+++ b/drivers/tpm/Kconfig
@@ -64,4 +64,13 @@
 	  TPM_LoadKey2 and TPM_GetPubKey are provided. Both features are
 	  available using the 'tpm' command, too.
 
+config TPM_ST33ZP24_I2C
+	bool "STMicroelectronics ST33ZP24 I2C TPM"
+	depends on TPM && DM_I2C
+	---help---
+	  This driver supports STMicroelectronics TPM devices connected on the I2C bus.
+	  The usual tpm operations and the 'tpm' command can be used to talk
+	  to the device using the standard TPM Interface Specification (TIS)
+	  protocol
+
 endmenu